/*
 * Copyright (c) 2018 Nordic Semiconductor ASA
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 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
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 *   3. Neither the name of Nordic Semiconductor ASA nor the names of other
 *   contributors to this software may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 *   4. This software must only be used in or with a processor manufactured by Nordic
 *   Semiconductor ASA, or in or with a processor manufactured by a third party that
 *   is used in combination with a processor manufactured by Nordic Semiconductor.
 *
 *   5. Any software provided in binary or object form under this license must not be
 *   reverse engineered, decompiled, modified and/or disassembled.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// Test framework
#include "catch2/catch.hpp"

// Logging support
#include <internal/log.h>

// Test support
#include <test_setup.h>
#include <test_util.h>

#include <ble.h>
#include <sd_rpc.h>

#include <sstream>
#include <string>
#include <thread>

TEST_CASE(CREATE_TEST_NAME_AND_TAGS(security, [PCA10028][PCA10031][PCA10040][PCA10056][PCA10059]))
{
    auto env = ::test::getEnvironment();
    INFO(::test::getEnvironmentAsText(env));
    REQUIRE(env.serialPorts.size() >= 2);
    const auto central    = env.serialPorts.at(0);
    const auto peripheral = env.serialPorts.at(1);

    // Indicates if an error has occurred in a callback.
    // The test framework is not thread safe so this variable is used to communicate that an issues
    // has occurred in a callback.
    auto error = false;

    // Set to true when the test is complete
    auto testComplete = false;

    const auto setupPeripheral = [&](const std::shared_ptr<testutil::AdapterWrapper> &p,
                                     const std::string &advertisingName,
                                     const std::vector<uint8_t> &initialCharacteristicValue,
                                     const uint16_t characteristicValueMaxLength) -> uint32_t {
        // Setup the advertisement data
        std::vector<uint8_t> advertisingData;
        testutil::appendAdvertisingName(advertisingData, advertisingName);

        auto err_code = p->setupAdvertising(advertisingData);
        if (err_code != NRF_SUCCESS)
        {
            NRF_LOG(p->role() << " Error setting advertising data, "
                              << ", " << testutil::errorToString(err_code));
            return err_code;
        }

        return err_code;
    };

    SECTION("legacy_passkey")
    {
        const auto peripheralAdvName = testutil::createRandomAdvertisingName();

        // Instantiate an adapter to use as BLE Central in the test
        auto c = std::make_shared<testutil::AdapterWrapper>(
            testutil::Central, central.port, env.baudRate, env.mtu, env.retransmissionInterval,
            env.responseTimeout);

        // Instantiated an adapter to use as BLE Peripheral in the test
        auto p = std::make_shared<testutil::AdapterWrapper>(
            testutil::Peripheral, peripheral.port, env.baudRate, env.mtu,
            env.retransmissionInterval, env.responseTimeout);

        REQUIRE(sd_rpc_log_handler_severity_filter_set(c->unwrap(), env.driverLogLevel) ==
                NRF_SUCCESS);
        REQUIRE(sd_rpc_log_handler_severity_filter_set(p->unwrap(), env.driverLogLevel) ==
                NRF_SUCCESS);

        c->setGapEventCallback([&](const uint16_t eventId, const ble_gap_evt_t *gapEvent) -> bool {
            switch (eventId)
            {
                case BLE_GAP_EVT_CONNECTED:
                {
                    const auto err_code = c->startAuthentication(true, true, false, true);

                    if (err_code != NRF_SUCCESS)
                    {
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_DISCONNECTED:
                    return true;
                case BLE_GAP_EVT_ADV_REPORT:
                    if (testutil::findAdvName(gapEvent->params.adv_report, peripheralAdvName))
                    {
                        if (!c->scratchpad.connection_in_progress)
                        {
                            const auto err_code =
                                c->connect(&(gapEvent->params.adv_report.peer_addr));

                            if (err_code != NRF_SUCCESS)
                            {
                                NRF_LOG(c->role()
                                        << " Error connecting to "
                                        << testutil::asText(gapEvent->params.adv_report.peer_addr)
                                        << ", " << testutil::errorToString(err_code));
                                error = true;
                            }
                        }
                    }
#if NRF_SD_BLE_API == 6
                    else
                    {
                        c->startScan(true);
                    }
#endif
                    return true;
                case BLE_GAP_EVT_TIMEOUT:
                    if (gapEvent->params.timeout.src == BLE_GAP_TIMEOUT_SRC_SCAN)
                    {
                        const auto err_code = c->startScan();

                        if (err_code != NRF_SUCCESS)
                        {
                            NRF_LOG(c->role() << " Scan start error, err_code " << err_code);
                            error = true;
                        }
                    }
                    return true;
                case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
                {
                    const auto err_code = sd_ble_gap_conn_param_update(
                        c->unwrap(), c->scratchpad.connection_handle,
                        &(gapEvent->params.conn_param_update_request.conn_params));

                    if (err_code != NRF_SUCCESS)
                    {
                        NRF_LOG(c->role() << " Conn params update failed, err_code " << err_code);
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
                {
                    ble_gap_sec_keyset_t keyset;
                    memset(&keyset, 0, sizeof(ble_gap_sec_keyset_t));

                    ble_gap_sec_keys_t keys_own;
                    ble_gap_sec_keys_t keys_peer;
                    memset(&keys_own, 0, sizeof(keys_own));
                    memset(&keys_peer, 0, sizeof(keys_peer));

                    keyset.keys_own  = keys_own;
                    keyset.keys_peer = keys_peer;

                    const auto err_code = c->securityParamsReply(keyset);

                    if (err_code != NRF_SUCCESS)
                    {
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_PASSKEY_DISPLAY:
                {
                    size_t size = 0;

                    switch (p->scratchpad.key_type)
                    {
                        case BLE_GAP_AUTH_KEY_TYPE_PASSKEY:
                            size = 6;
                            break;
                        case BLE_GAP_AUTH_KEY_TYPE_OOB:
                            size = 16;
                            break;
                        default:
                            break;
                    }

                    if (size != 0)
                    {
                        std::memcpy(c->scratchpad.key, gapEvent->params.passkey_display.passkey,
                                    size);
                    }

                    const auto err_code =
                        p->authKeyReply(p->scratchpad.key_type, c->scratchpad.key);

                    if (err_code != NRF_SUCCESS)
                    {
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_AUTH_STATUS:
                    if (gapEvent->params.auth_status.auth_status == BLE_GAP_SEC_STATUS_SUCCESS)
                    {
                        testComplete = true;
                    }
                    else
                    {
                        error = true;
                    }

                    return true;
                default:
                    return false;
            }
        });

        p->setGapEventCallback([&](const uint16_t eventId, const ble_gap_evt_t *gapEvent) {
            switch (eventId)
            {
                case BLE_GAP_EVT_DISCONNECTED:
                {
                    // Use scratchpad defaults when advertising
                    NRF_LOG(p->role() << " Starting advertising.");
                    const auto err_code = p->startAdvertising();
                    if (err_code != NRF_SUCCESS)
                    {
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_TIMEOUT:
                    return true;
                case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
                {
                    ble_gap_sec_keyset_t keyset;
                    std::memset(&keyset, 0, sizeof(keyset));

                    const auto err_code =
                        p->securityParamsReply(BLE_GAP_SEC_STATUS_SUCCESS, keyset);

                    if (err_code != NRF_SUCCESS)
                    {
                        error = true;
                    }
                }
                    return true;
                case BLE_GAP_EVT_AUTH_STATUS:
                    if (gapEvent->params.auth_status.auth_status == BLE_GAP_SEC_STATUS_SUCCESS)
                    {
                        // Move on to the next type of bonding/pairing
                        testComplete = true;
                    }
                    else
                    {
                        error = true;
                    }

                    return true;
                default:
                    return false;
            }
        });

        c->setStatusCallback([&](const sd_rpc_app_status_t code, const std::string &message) {
            if (code == PKT_DECODE_ERROR || code == PKT_SEND_MAX_RETRIES_REACHED ||
                code == PKT_UNEXPECTED)
            {
                NRF_LOG(c->role() << " error in status callback " << static_cast<uint32_t>(code)
                                  << ": " << message);
                error = true;
            }
        });

        p->setStatusCallback([&](const sd_rpc_app_status_t code, const std::string &message) {
            if (code == PKT_DECODE_ERROR || code == PKT_SEND_MAX_RETRIES_REACHED ||
                code == PKT_UNEXPECTED)
            {
                NRF_LOG(p->role() << " error in status callback " << static_cast<uint32_t>(code)
                                  << ": " << message);
                error = true;
            }
        });

        // Open the adapters
        REQUIRE(c->open() == NRF_SUCCESS);
        REQUIRE(p->open() == NRF_SUCCESS);

        REQUIRE(c->configure() == NRF_SUCCESS);
        REQUIRE(p->configure() == NRF_SUCCESS);

        REQUIRE(setupPeripheral(p, peripheralAdvName, {0x00}, p->scratchpad.mtu) == NRF_SUCCESS);
        REQUIRE(p->startAdvertising() == NRF_SUCCESS);

        // Starting the scan starts the sequence of operations to get a connection established
        REQUIRE(c->startScan() == NRF_SUCCESS);

        // Wait for the test to complete
        std::this_thread::sleep_for(std::chrono::seconds(5));

        CHECK(error == false);
        CHECK(testComplete == true);

        CHECK(c->close() == NRF_SUCCESS);
        sd_rpc_adapter_delete(c->unwrap());

        CHECK(p->close() == NRF_SUCCESS);
        sd_rpc_adapter_delete(p->unwrap());
    }
}
